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Table 3 Percentage of ear disease stratified by gender and age

From: Ear diseases among secondary school students in Xi'an, China: The role of portable audio device use, insomnia and academic stress

Gender and Age Ear disease Without ear disease Total Percentage of ear disease (%)
Gender1 Boy 42 751 793 5.30%
  Girl 10 764 774 1.29%
Age2 12-14 13 408 421 3.09%
  15-17 36 993 1029 3.50%
  18-19 3 114 117 2.56%
  1. X 2 1 = 19.576, P = 0.000; X 2 2 = 0.381, P = 0.826